ghsa-p3j3-7q7c-3g53
Vulnerability from github
Published
2024-04-10 21:30
Modified
2024-04-19 21:31
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

cfg80211: call cfg80211_stop_ap when switch from P2P_GO type

If the userspace tools switch from NL80211_IFTYPE_P2P_GO to NL80211_IFTYPE_ADHOC via send_msg(NL80211_CMD_SET_INTERFACE), it does not call the cleanup cfg80211_stop_ap(), this leads to the initialization of in-use data. For example, this path re-init the sdata->assigned_chanctx_list while it is still an element of assigned_vifs list, and makes that linked list corrupt.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47194"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-665"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-10T19:15:47Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncfg80211: call cfg80211_stop_ap when switch from P2P_GO type\n\nIf the userspace tools switch from NL80211_IFTYPE_P2P_GO to\nNL80211_IFTYPE_ADHOC via send_msg(NL80211_CMD_SET_INTERFACE), it\ndoes not call the cleanup cfg80211_stop_ap(), this leads to the\ninitialization of in-use data. For example, this path re-init the\nsdata-\u003eassigned_chanctx_list while it is still an element of\nassigned_vifs list, and makes that linked list corrupt.",
  "id": "GHSA-p3j3-7q7c-3g53",
  "modified": "2024-04-19T21:31:07Z",
  "published": "2024-04-10T21:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47194"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0738cdb636c21ab552eaecf905efa4a6070e3ebc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e458abbb4a523f1413bfe15c079cf4e24c15b21"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52affc201fc22a1ab9a59ef0ed641a9adfcb8d13"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/563fbefed46ae4c1f70cffb8eb54c02df480b2c2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b97b5776daa0b39dbdadfea176f9cc0646d4a66"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f06bb8c216bcd172394f61e557727e691b4cb24"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b8a045e2a9b234cfbc06cf36923886164358ddec"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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